3 * mdp - make dummy policy
5 * When pointed at a kernel tree, builds a dummy policy for that kernel
6 * with exactly one type with full rights to itself.
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 * Copyright (C) IBM Corporation, 2006
24 * Authors: Serge E. Hallyn <serue@us.ibm.com>
34 void usage(char *name)
36 printf("usage: %s [-m] policy_file context_file\n", name);
40 void find_common_name(char *cname, char *dest, int len)
44 start = strchr(cname, '_')+1;
45 end = strchr(start, '_');
46 if (!start || !end || start-cname > len || end-start > len) {
47 printf("Error with commons defines\n");
50 strncpy(dest, start, end-start);
51 dest[end-start] = '\0';
55 static char *classlist[] = {
56 #include "class_to_string.h"
61 #include "initial_sid_to_string.h"
63 #define TB_(x) char *x[] = {
64 #define TE_(x) NULL };
66 #include "common_perm_to_string.h"
75 struct common common[] = {
76 #define TB_(x) { #x, x },
79 #include "common_perm_to_string.h"
85 #define S_(x, y, z) {x, #y},
90 struct av_inherit av_inherit[] = {
91 #include "av_inherit.h"
95 #include "av_permissions.h"
96 #define S_(x, y, z) {x, y, z},
102 struct av_perms av_perms[] = {
103 #include "av_perm_to_string.h"
107 int main(int argc, char *argv[])
110 char **arg, *polout, *ctxout;
111 int classlist_len, initial_sid_to_string_len;
117 if (argc==4 && strcmp(argv[1], "-m") == 0) {
124 fout = fopen(polout, "w");
126 printf("Could not open %s for writing\n", polout);
130 classlist_len = sizeof(classlist) / sizeof(char *);
131 /* print out the classes */
132 for (i=1; i < classlist_len; i++) {
134 fprintf(fout, "class %s\n", classlist[i]);
136 fprintf(fout, "class user%d\n", i);
140 initial_sid_to_string_len = sizeof(initial_sid_to_string) / sizeof (char *);
141 /* print out the sids */
142 for (i=1; i < initial_sid_to_string_len; i++)
143 fprintf(fout, "sid %s\n", initial_sid_to_string[i]);
146 /* print out the commons */
147 for (i=0; i< sizeof(common)/sizeof(struct common); i++) {
149 find_common_name(common[i].cname, cname, 100);
151 fprintf(fout, "common %s\n{\n", cname);
152 for (j=0; common[i].perms[j]; j++)
153 fprintf(fout, "\t%s\n", common[i].perms[j]);
154 fprintf(fout, "}\n\n");
158 /* print out the class permissions */
159 for (i=1; i < classlist_len; i++) {
161 int firstperm = -1, numperms = 0;
163 fprintf(fout, "class %s\n", classlist[i]);
164 /* does it inherit from a common? */
165 for (j=0; j < sizeof(av_inherit)/sizeof(struct av_inherit); j++)
166 if (av_inherit[j].class == i)
167 fprintf(fout, "inherits %s\n", av_inherit[j].common);
169 for (j=0; j < sizeof(av_perms)/sizeof(struct av_perms); j++) {
170 if (av_perms[j].class == i) {
181 fprintf(fout, "{\n");
182 /* print out the av_perms */
183 for (j=0; j < numperms; j++) {
184 fprintf(fout, "\t%s\n", av_perms[firstperm+j].perm_s);
186 fprintf(fout, "}\n\n");
191 /* NOW PRINT OUT MLS STUFF */
193 printf("MLS not yet implemented\n");
197 /* types, roles, and allows */
198 fprintf(fout, "type base_t;\n");
199 fprintf(fout, "role base_r types { base_t };\n");
200 for (i=1; i < classlist_len; i++) {
202 fprintf(fout, "allow base_t base_t:%s *;\n", classlist[i]);
204 fprintf(fout, "allow base_t base_t:user%d *;\n", i);
206 fprintf(fout, "user user_u roles { base_r };\n");
210 for (i=1; i < initial_sid_to_string_len; i++)
211 fprintf(fout, "sid %s user_u:base_r:base_t\n", initial_sid_to_string[i]);
215 fprintf(fout, "fs_use_xattr ext2 user_u:base_r:base_t;\n");
216 fprintf(fout, "fs_use_xattr ext3 user_u:base_r:base_t;\n");
217 fprintf(fout, "fs_use_xattr jfs user_u:base_r:base_t;\n");
218 fprintf(fout, "fs_use_xattr xfs user_u:base_r:base_t;\n");
219 fprintf(fout, "fs_use_xattr reiserfs user_u:base_r:base_t;\n");
221 fprintf(fout, "fs_use_task pipefs user_u:base_r:base_t;\n");
222 fprintf(fout, "fs_use_task sockfs user_u:base_r:base_t;\n");
224 fprintf(fout, "fs_use_trans devpts user_u:base_r:base_t;\n");
225 fprintf(fout, "fs_use_trans tmpfs user_u:base_r:base_t;\n");
226 fprintf(fout, "fs_use_trans shm user_u:base_r:base_t;\n");
228 fprintf(fout, "genfscon proc / user_u:base_r:base_t\n");
232 fout = fopen(ctxout, "w");
234 printf("Wrote policy, but cannot open %s for writing\n", ctxout);
237 fprintf(fout, "/ user_u:base_r:base_t\n");
238 fprintf(fout, "/.* user_u:base_r:base_t\n");